Default storage configuration

[picolin]

Hello, new to the proxmox world and decided to give it a try recently. However I am having some small-ish problems understanding how to do things. So, I have a disk dedicated for the OS and another raidz locally that I want to use for data, vms storage and iso storage for the server itself.

if I create a VM for example, it creates the disk under

/dev/zvol/picolin/vms/vm-100-disk-1 and

/dev/picolin/vms/vm-100-disk-1

I want to be able to change those defaults and besaved under my zfs pool1/picolin/vm

How can i tell the server that the iso images are going to be under the zfs /server/iso and how do I tell it to add the VM disks and everything to the zfs /server/vms??

I tried modifying the storage.cfg but nothing, I also tried createing zfs from the GUI but no result. I cannot find anything online on how to change the default storage on proxmox, is this even possible? any help/guidance will be much appreciated!

 

[manu]

/dev/zvol/picolin/vms/vm-100-disk-1 and
/dev/picolin/vms/vm-100-disk-1

If you were not sure about this, this means that the disk in *are* in your zfs pool picolin. It's just that each disk images is a ZFS zvol, which is a kind of block device abstraction on top of the ZFS pool.

If you want to add a *file based* storage on top of the zfs pool, creates a directory in /picolin, add this directory as a storage of type directory.

see https://pve.proxmox.com/wiki/Storage:_Directory

 

[picolin]

/dev/zvol/picolin/vms/vm-100-disk-1 and
/dev/picolin/vms/vm-100-disk-1

If you were not sure about this, this means that the disk in *are* in your zfs pool picolin. It's just that each disk images is a ZFS zvol, which is a kind of block device abstraction on top of the ZFS pool.

If you want to add a *file based* storage on top of the zfs pool, creates a directory in /picolin, add this directory as a storage of type directory.

see https://pve.proxmox.com/wiki/Storage:_Directory

Thank you for the reply! Sorry not sure if I udnerstood correctly. Also realized that I did not explain this very well, I created in reality a zfs pool of 4 disks and created different zfs to hold the files like this:

root@proxmox:~# zfs list
NAME USED AVAIL REFER MOUNTPOINT
proxmox 25.8G 900.02G 25.4K /proxmox
proxmox/backup 25.4K 900.02G 25.4K /proxmox/backup
proxmox/data 25.4K 900.02G 25.4K /proxmox/data
proxmox/isos 25.4K 900.02G 25.4K /proxmox/isos
proxmox/vms 25.8G 900.02G 25.4K /proxmox/vms
proxmox/vms/vm-101-disk-1 25.8G 28.8G 12.0K -​

See the last line? it actually created a new zfs file on the OS partition, not the zfs pool with the 4 disks I created. So I want to force proxmox to actually store the VMs under proxmox/vms, I want to store the isos under proxmox/isos

 

[fabian]

Thank you for the reply! Sorry not sure if I udnerstood correctly. Also realized that I did not explain this very well, I created in reality a zfs pool of 4 disks and created different zfs to hold the files like this:

root@proxmox:~# zfs list
NAME USED AVAIL REFER MOUNTPOINT
proxmox 25.8G 900.02G 25.4K /proxmox
proxmox/backup 25.4K 900.02G 25.4K /proxmox/backup
proxmox/data 25.4K 900.02G 25.4K /proxmox/data
proxmox/isos 25.4K 900.02G 25.4K /proxmox/isos
proxmox/vms 25.8G 900.02G 25.4K /proxmox/vms
proxmox/vms/vm-101-disk-1 25.8G 28.8G 12.0K -​

See the last line? it actually created a new zfs file on the OS partition, not the zfs pool with the 4 disks I created. So I want to force proxmox to actually store the VMs under proxmox/vms, I want to store the isos under proxmox/isos

proxmox/vms/vm-101-disk-1 is a zvol, it is stored on your zpool.

if you want to store your isos on zfs, simply add /proxmox/isos as directory storage, PVE will then create the needed sub directories. same goes for backups (although backups on the same disks are usually not a good idea )

 

[picolin]

proxmox/vms/vm-101-disk-1 is a zvol, it is stored on your zpool.

if you want to store your isos on zfs, simply add /proxmox/isos as directory storage, PVE will then create the needed sub directories. same goes for backups (although backups on the same disks are usually not a good idea )

lol I am sorry I feel so dumb. But if you notice, the proxmox/vms/vm-101-disk-1 is a separate zfs (zvol) that is actually residing on the OS partition and not on my RAID set, you can see the space available on the df -h result, which is 28.gGB (OS disk) as compared to the 900.02GB RAID pool.

 

[fabian]

A zvol cannot be created "on the OS partition" - it can only be created on a zpool. A zpool itself is backed by vdevs, which can be files or block devices.

please post the complete output of "zfs get all" and "zpool get all" - but I think the problem is a misunderstanding of how ZFS works..

(also please post such output surrounded by code tags (insert -> code in the rich text editor) - otherwise it's very hard to read it)